been thinking about cleaning my records, well, some of them. I have just inherited (literally) about 40+ half decent mostly classical LP's, most of which look in excellent condition, but a few are a bit dusty/mucky. I was thinking about washing them, and about when I have washed LP's before, obtaining mixed results.
Looking at formulae on the net over the years, a common mix is 25% propanol with water, and a drop or two of detergent. I'm very familiar with propanol (IPA) as it is a very common (and useful) solvent in chemistry, although it does not dissolve oil/grease. For that I use d-limonene. But the detergent thing concerns me. If any trace is left on the disc surface, it could leave a sticky mess.
In the distant pass, I was working for a medical device company, where they analysed blood. To burst the blood cells they used saponin, a natural detergent. I made some 'cleaning solution' for a record shop, with a view to supplying them. I gave them a sample, and it proved very good for its purpose. So I thought I might make some more, but the only saponin I could find was £50 from the US. However, I found that there is a product on the market which uses Indian Soap nuts (Sapindus mukorossi), which contain saponin, I have decided to try these, so I am going nuts, it's official!
The problem with saponins is that they are haemolachrymatory, they burst blood cells, so if entering the eye, the result could be bloody tears! I warned the man in the record shop of this, all he could say was that it was a good name for a group: 'Crying Blood'.
I'll report back if I proceed with this.
ps Recently read an article about making vinyl records, and they used a saponin solution for cleaning the metal father.